Egypt mourns 25 Christians killed in church explosion

Egyptians are holding prayers for 25 Christians killed the day before at a church next to the city's main Coptic cathedral in what was one of the deadliest attacks on the religious minority in recent memory.

The bomb went off during Sunday Mass at a chapel adjacent to St. Mark's Cathedral. No group has claimed responsibility for the attack.

The coffins of the 25 have been laid in front of the altar on Monday, with the names of each victim displayed on the side facing the congregation.

Only victims' relatives were allowed to attend the service. Some screamed out in grief, while the rest quietly sobbed or sat somberly as a priest led the service.

The worst previous attack against Christians was a 2011 bombing in Alexandria that killed 21.